Brake fluid Smell?

I have had a weird brake fluid smell that appears (or is smelt) occasionally since I have lifted my truck. Everything is working fine... no leaks or anything. Actually everything has been replace within the past year... calipers, wheel cylinders, master, etc. I do have Pro Comp Stainless steel brake lines, would that possibly be causing my woes? They aren't rubbing or anything and are tied off. The only thing I can think of is that the fluid is boiling, but why? No sticking calipers and the calipers feel cool, so I'm kinda stumped. Any ideas?

No leaks... haven't added fluid in 2 months since I bleed out the brakes and prop valve.

Man if this is just the brake lines who's got the NAPA numbers for extended rubber lines? LOL This smell is becoming one of the most hated smell from a car... just short of skanky coolant... eww. I also suppose our 99 degree temp's haven't helped... stupid misriable summer.

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